Gum enlargement is treated differently depending on the specific cause. One, chronic gingivitis. Remove plaque calculus and other pathogenic factors that promote plaque buildup, instruct the patient to self-control plaque, and ask to know if the patient has systemic factors that promote disease progression, such as smoking, stress, nutrition, and drug use. If the gingival hyperplasia remains in a significantly hyperplastic state after basic periodontal treatment, surgical excision may be considered. Second, adolescent gingivitis. Oral hygiene instruction for adolescence, removal of local irritants, supragingival scaling, and subgingival scraping if necessary. Third, gingivitis during pregnancy. Consider postponing periodontal treatment in the first or second trimester of pregnancy to avoid miscarriage or preterm delivery. Remove plaque, tartar and other irritants in the 4th-6th months of pregnancy, but the operation must be gentle to minimize bleeding and pain. Fourth, medicated gingival hyperplasia. Without affecting the control of systemic diseases, replace the drugs causing gingival hyperplasia and remove plaque, tartar and other local irritants. Fifth, gingival fibroids. Remove local irritants such as plaque and tartar, and surgical treatment is based on gingivoplasty. Sixth, gingival tumor. Removal of irritating factors, surgical removal.